Colors problem at Select/Title screen with a 3 Wonders pcb

[lovecraft]

Hey guys, I recently got a Three Wonders pcb (Capcom CPS1) with its original suicide battery still working. It's a World Version.
The game works fine, except I noticed an odd wrong colors problem at 'Game Select' and title screen only.
I changed the old battery with a new one, but the bug is still here.
Anyone has the same problem with this pcb ? Any way to fix it ?
Thanks.

[Stefan_L]

If i remember correctly so is this caused by an "overscan" effect that the monitor can't handle, it can only be fixed by getting a compatible monitor.
Mercs also has this problem.

[lovecraft]

If i remember correctly so is this caused by an "overscan" effect that the monitor can't handle, it can only be fixed by getting a compatible monitor.
Mercs also has this problem.

Interesting info, thanks I play with a Supergun, so maybe it's my crt tv that can't handle it 100%

[jepjepjep]

I have the same issue with my 3 Wonders board in my cab. It seems to be a pcb/monitor compatibility issue. There's more info here: http://neo.dyndns.tv/technical/3wonders/ (thanks for the link, emphatic)

Edit: It seems Stefan L contributed to the findings, thanks to you too!